Height: feet and inches ↔ centimetres
Heights and body weights are still usually quoted in feet, inches and pounds in everyday Canadian conversation, while forms and doctors’ offices increasingly use cm and kg.
Feet / Inches
177.8 cm
Centimetres
5′ 10″
Type in either side; the other updates.
Quick reference
Everyday conversions, computed with the same factors as the converter.
| From | To |
|---|---|
| 0 °C | 32 °F |
| 20 °C | 68 °F |
| 37 °C | 98.6 °F |
| 350 °F | 176.6667 °C |
| 50 km/h | 31.06856 mph |
| 100 km/h | 62.13712 mph |
| 60 mph | 96.56064 km/h |
| 1 lb | 0.4535924 kg |
| 150 lb | 68.03886 kg |
| 1 kg | 2.204623 lb |
| 1 ft | 30.48 cm |
| 1 mi | 1.609344 km |
| 10 km | 6.213712 mi |
| 1 gal (imp.) | 4.54609 L |
| 1 gal (US) | 3.785412 L |
| 1,000 ft² | 92.90304 m² |
Imperial gallon vs U.S. gallon
Canada’s legal gallon is the imperial gallon, but fuel economy figures for American vehicles, recipes and online shopping often use the U.S. gallon. They are not the same size.
Defined in Schedule II of the Weights and Measures Act as 4.54609 litres. Used for “miles per imperial gallon”.
Defined as 231 cubic inches, exactly 3.785411784 litres. About 17% smaller than the imperial gallon.
One imperial gallon is about 1.2009 U.S. gallons. A car rated 30 mpg (U.S.) is about 36 mpg (imperial).
Where Canada uses which system
Canada is officially metric, but imperial units remain common in daily talk.
- Road signs, speed limits and distances (km, km/h)
- Weather and temperature (°C)
- Fuel sold at the pump (litres)
- Most packaged food labels (g, mL)
- Schools, science and health care measurements
- Height (5′10″) and body weight (lb)
- Cooking temperatures and recipe cups
- Home size in square feet
- Lumber and construction dimensions
- Pints at the pub and groceries sold by the pound
- Imperial vs U.S. gallons and fluid ounces
- Cups: U.S., imperial and metric (250 mL) cups are three different sizes
- “Ton” (2,000 lb) vs tonne (1,000 kg)
- Stone (14 lb) appears in some British sources
- Square feet vs square metres for property
Frequently asked questions
How many feet and inches is 180 cm?
180 cm is 70.9 inches, which is 5 feet 10.9 inches (about 5′11″). Divide centimetres by 2.54 to get inches, then divide by 12 for feet.
How do I convert °C to °F in my head?
The exact formula is °F = °C × 9/5 + 32. A rough shortcut is to double the Celsius value and add 30: 20°C is about 70°F (exactly 68°F). The shortcut drifts at extreme temperatures.
Is a Canadian gallon the same as a U.S. gallon?
No. Canada’s legal (imperial) gallon is 4.54609 litres; the U.S. liquid gallon is 3.785411784 litres. This converter lists both.
Are these conversions exact?
The inch, foot, yard, mile, ounce, pound and imperial gallon are defined exactly in terms of metric units, so the factors are exact. Only the on-screen display is rounded, to 7 significant digits.
What is the difference between a ton and a tonne?
A tonne (metric ton) is 1,000 kg. The short ton is 2,000 pounds, about 907.18 kg. Schedule II of the Weights and Measures Act defines the ton as 2,000 pounds.
Can I use this for cooking?
Weights and temperatures convert exactly. Cup and spoon measures vary between countries and recipes, so this page does not convert them; use a kitchen scale for accuracy.
Last updated
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How we check it
Automated tests (Node’s built-in test runner) compare the exact definitions in Schedule II of the Weights and Measures Act: 1 in = 25.4 mm, 1 mi = 1.609344 km, 1 lb = 0.45359237 kg, 1 imperial gal = 4.54609 L, 1 oz = 28.349523125 g, 1 acre = 4,046.8564224 m², and the U.S. gallon from NIST SP 811.
Temperature is tested at fixed points: 0 °C = 32 °F, 100 °C = 212 °F, −40 is the same on both scales and 98.6 °F = 37 °C. Every unit pair is round-tripped to confirm the result returns to the starting value.
Limits: these are same-library checks against published definitions; we did not compare against another converter. Cups, spoons and other regional cooking units are not converted.